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    2 vulnerabilities found for executor-legacy-ws by @graphql-tools

    CVE-2026-103921 (GCVE-0-2026-103921)

    Vulnerability from nvd – Published: 2026-10-01 16:32 – Updated: 2026-10-01 18:04
    VLAI
    Title
    GraphQL Tools: TLS Certificate Validation Disabled in Legacy GraphQL WebSocket Executor
    Summary
    GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor() function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loader with SubscriptionProtocol.LEGACY_WS, can therefore accept an attacker-controlled certificate when a network-positioned attacker intercepts the connection. Authentication material in connectionParams or headers can be disclosed, and subscription data can be modified. Browser WebSocket clients are unaffected because browsers enforce certificate validation. This issue is fixed in version 1.1.35.
    Severity
    7.4 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-01 18:04 UTC
    CWE
    • CWE-295 - Improper Certificate Validation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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        },
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          "value": "GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor() function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loader with SubscriptionProtocol.LEGACY_WS, can therefore accept an attacker-controlled certificate when a network-positioned attacker intercepts the connection. Authentication material in connectionParams or headers can be disclosed, and subscription data can be modified. Browser WebSocket clients are unaffected because browsers enforce certificate validation. This issue is fixed in version 1.1.35."
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        "advisory": "GHSA-6fw5-9hq8-w87g",
        "discovery": "UNKNOWN"
      },
      "title": "GraphQL Tools: TLS Certificate Validation Disabled in Legacy GraphQL WebSocket Executor"
    }
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    CVE-2026-103921 (GCVE-0-2026-103921)

    Vulnerability from cvelistv5 – Published: 2026-10-01 16:32 – Updated: 2026-10-01 18:04
    VLAI
    Title
    GraphQL Tools: TLS Certificate Validation Disabled in Legacy GraphQL WebSocket Executor
    Summary
    GraphQL Tools provides utilities for building, stitching, and mocking GraphQL schemas. Prior to 1.1.35, the executor-legacy-ws buildWSLegacyExecutor() function hardcodes TLS certificate rejection off for Node.js connections to wss:// endpoints. Applications using the executor directly, or url-loader with SubscriptionProtocol.LEGACY_WS, can therefore accept an attacker-controlled certificate when a network-positioned attacker intercepts the connection. Authentication material in connectionParams or headers can be disclosed, and subscription data can be modified. Browser WebSocket clients are unaffected because browsers enforce certificate validation. This issue is fixed in version 1.1.35.
    Severity
    7.4 (High)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-10-01 18:04 UTC
    CWE
    • CWE-295 - Improper Certificate Validation
    Assigner
    References
    Impacted products
    Show details on NVD website
    To clipboard 

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